Comet 103P Hartley Reference Line Maps & DSS Images near May,2010 perihelion. This series of maps has been developed for use with the Reference Line Method. It adapts well to both binoculars and telescopes.

Full Set of Reference Line Maps for Saturn in 2010.  This series of maps has been developed for use with the Reference Line Method.  It adapts well to both binoculars and telescopes.

Comet 118P Shoemaker-Levy Reference Line Maps & DSS Images near Janurary,2010 perihelion.  This series of maps has been developed for use with the Reference Line Method.  It adapts well to both binoculars and telescopes.

Set of 24 Reference Line Maps of Asteroid Ceres, Feb. 2010 thru June 2010.  This series of maps has been developed for use with the Reference Line Method.  It adapts well to both binoculars and telescopes.